Oil valve



June 16, 1931. c. WILHJELM 1,810,331

OIL vALvs Filed Jan. 19, 1929 PatentedJune 16,; 1931 umrnm STATES?OFF-ICE.

cnnrsrmn WILHJELM, or HILA ELP IA,rnNnsYLvANIA, nssreivoa, BY MESNEASSIGNMENTS, o cnars'rran W'ILI-ZJELM, or PHILADELPHIA, PENNSYLVANIA, AS1,,

TRUSTEE OIL VALVE Application filed January '19. 1929. Serial No.333,732.

a This invention relates to fuel oil valves of the type, used inconnection with steam or air for supplying fuel to furnaces and whereclose control of theatmosphere and temperatureof a furnace is essential'v The object of the invention is to provide an improved valve for thispurpose embodying novel features of construction and control. V 7

To this end the invention is; emboched in a valve arranged. and.constructed as hereinafter setforthand as illustrated in theaccompanying drawings in which; 1 Figure 1,1sa vertical sectional v1ewof the valve.

Figure 2 isa view of the valve plug sho-wing the inlet side.

Figure 3 is a viewof the valve plug show-, ing the outlet side.

line 4- .1; of Figure 1.

I Figure 5 is a detail view.

Thereference numeral 6 denotes avalve casing having an inlet 7 and anoutlet 8.

The casing forms a valve chamber 9 having tapered seats 10 and 11.

' valve plug which is seated against the valve operating arm 17 beattached.

seats by means of aspring 13. A plugll.

closes thejbottom of tne valve. The valve plug has a stem l5whichextends upwardly through a stuifing box '16 and to which an 24; on thesurface of the plug and which er, tends for a short distance along theplug surface. s

, Eachoutlet orifice iscan extension of and leads into an inlet bore 25adapted to be Figure A is a horizontal sectional view on 12 is a taperedclosed witha screw 26. The inlets 25 are all of the same size, so thatany of the three orifices or a combination of two may be used only doeseach outlet orifice provide a clifferent volume of flow of the liquidfuel, but

each orifice may be adjusted individually by a mere rotation of thevalve plug, whereby the outlet opening may be adjusted to almost nothingat the point 24.

In practice it has been found necessary to provide adjustment to a veryfine degree and the valve herein solves the problem in a very simple andeificient manner.

I claim:

1. A valve mechanism comprising a valve chamber having an inlet and anoutlet, a

valve plug insaid chamber provided with a plurality of passages leadingfrom said inlet a to the-said outlet, each of said passages comprisingan; orifice leading from an eccentric tapered groove in the surface ofsaid-plug in its outlet side a distance into said plug' and a threadedbore leading from the orifice tothe inlet side of the plug, screws forclosing said threaded bores, all of said orifices" and grooves beinggraded in size and all of said bores being of the same size and meanspermitting access to the said plug from outside the valve.

A valve mechanism comprising a valve chamber having an inlet and anoutlet, a valve plug in said chamber provided with a plurality ofpassages leading from said inlet to the said. outlet, each. of saidpassages being located at a different level from'the other passages andcomprising an orifice leading from an eccentric tapered groove inthesurface of said plug in 1ts outlet side very fine degree as mayberequired. Not 35 i a distance into said plug and a threaded bore leadingfrom the orifice to the inlet side of the plug, screws for closing saidthreaded bores, all of said orifices and grooves being graded in sizeand all of said bores being of the same size and means permitting accessto the said plug from outside the valve.

CHRISTIAN WILHJELM.

